-- HpdH runtime configuration parameters---- Author: Patrick Maier-----------------------------------------------------------------------------moduleControl.Parallel.HdpH.Conf(-- * HdpH runtime system configuration parametersRTSConf(..),defaultRTSConf-- :: RTSConf)whereimportPreludeimportControl.Parallel.HdpH.Internal.Location(dbgNone)------------------------------------------------------------------------------- Runtime configuration parameters (for RTS monad stack)-- | 'RTSConf' is a record data type collecting a number of parameter-- governing the behaviour of the HdpH runtime system.dataRTSConf=RTSConf{debugLvl::Int,-- ^ Debug level, a number defined in module-- "Control.Parallel.HdpH.Internal.Location".-- Default is 0 (corresponding to no debug output).scheds::Int,-- ^ Number of concurrent schedulers per node. Must be positive and -- should be @<=@ to the number of HECs (as set by GHC RTS option -- @-N@). Default is 1.wakeupDly::Int,-- ^ Interval in microseconds to wake up sleeping schedulers-- (which is necessary to recover from a race condition between-- concurrent schedulers). Must be positive. -- Default is 1000 (corresponding to 1 millisecond).maxHops::Int,-- ^ Number of hops a FISH message may travel before being considered-- failed. Must be non-negative. Default is 7.maxFish::Int,-- ^ Low sparkpool watermark for fishing. RTS will send FISH message -- unless size of spark pool is greater than 'maxFish' (or unless -- a FISH is outstanding). Must be non-negative;-- should be @<@ 'minSched'. Default is 1.minSched::Int,-- ^ Low sparkpool watermark for scheduling. RTS will respond to FISH -- messages by SCHEDULEing sparks unless size of spark pool is less-- than 'minSched'. Must be non-negative; should be @>@ 'maxFish'.-- Default is 2.minFishDly::Int,-- ^ After a failed FISH, minimal delay in microseconds before-- sending another FISH message; the actual delay is chosen randomly-- between 'minFishDly' and 'maxFishDly'. Must be non-negative; should-- be @<=@ 'maxFishDly'.-- Default is 10000 (corresponding to 10 milliseconds).maxFishDly::Int,-- ^ After a failed FISH, maximal delay in microseconds before-- sending another FISH message; the actual delay is chosen randomly-- between 'minFishDly' and 'maxFishDly'. Must be non-negative; should-- be @>=@ 'minFishDly'.-- Default is 1000000 (corresponding to 1 second).numProcs::Int,-- ^ Number of nodes constituting the distributed runtime system.-- Must be positive. Default is 1.networkInterface::String-- ^ Network interface, required to autodetect a node's-- IP address. The string must be one of the interface names -- returned by the POSIX command @ifconfig@. -- Default is @eth0@ (corresponding to the first Ethernet interface).}-- | Default runtime system configuration parameters.defaultRTSConf::RTSConfdefaultRTSConf=RTSConf{debugLvl=dbgNone,-- no debug informationscheds=1,-- only 1 scheduler by defaultwakeupDly=1000,-- wake up one sleeping scheduler every millisecondmaxHops=7,-- no more than 7 hops per FISHmaxFish=1,-- send FISH when <= 1 spark in poolminSched=2,-- reply with SCHEDULE when >= 2 sparks in poolminFishDly=10000,-- delay at least 10 milliseconds after failed FISHmaxFishDly=1000000,-- delay up to 1 second after failed FISHnumProcs=1,-- only 1 node by defaultnetworkInterface="eth0"}-- first Ethernet adapter default inferface